Finite Group Databasebeta
Cayley diagram

C2×#382 #2281

order128
nilpotency class2
isoclinismisoclinic class of #120
automorphismAut(G) order 262144
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25×C4

Aliases

direct productC2×#382

Subgroups

subgroupG/H
center, socle, prime radicalC24C23
commutatorC22C23×C4
Frattini, cosocleC23C24
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

356 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 18
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 18 points:

(1,2);(4,5)(7,8,9,10)(13,17)(15,18);(3,4,6,5)(11,12,14,16)(13,15,17,18);(3,5,6,4)(11,13)(12,15)(14,17)(16,18)

Conjugacy classes & character table

56 conjugacy classes — view the full character table.

Relationships

Frattini subgroup of#94103, #94107, #94194, …
maximal subgroup of#7914, C2×#1286, #7959, …
maximal normal subgroup of#7914, C2×#1286, #7959, …
maximal quotient ofC2×#1434, C2×C4⋊#95, C4×#382, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(128, 1013);